Peyman Milanfar @docmilanfar.bsky.social · 14/04/2025I was invited to give this plenary talk at the Electronic Imaging Symposium this past February. The recording is now available on YouTube www.youtube.com/watch?v=s59U... 0141
Peyman Milanfar @docmilanfar.bsky.social · 13/04/2025Silicon Valley crosswalk buttons have been hacked to hilarious effect 1276
Peyman Milanfar @docmilanfar.bsky.social · 12/04/2025Most people don't understand that volatility alone can kill your investments start with capital P lose 5% one week: (1-0.05)*P gain 5% the next week: (1+0.05)*(1-0.05)*P. repeat the pattern for 1yr (52 weeks): (1+0.05)^26 *(1-0.05)^26 *P = 0.88P You lost 12% of your money. 3121
Peyman Milanfar @docmilanfar.bsky.social · 07/04/2025It's a cruel irony that those who orchestrated this stock market crash are already insulated from its effects. They will be fine. The real tragedy is that it's the ordinary person – the retiree, the small investor, the hardworking individual – who will suffer the most. 1171
Peyman Milanfar @docmilanfar.bsky.social · 05/04/2025"That Mr. Musk has come to hold so many of the same beliefs about social engineering and economic planning as his grandfather is a testament to his profound lack of political imagination, to the tenacity of technocracy and to the hubris of Silicon Valley." www.nytimes.com/2025/04/04/o...nytimes.comOpinion | The Rise and Fall of Elon Musk (Gift Article)His belief that liberal democracy has failed and that technologists should lead can be traced to the unusual life of his grandfather. 0140
Peyman Milanfar @docmilanfar.bsky.social · 04/04/2025Every profession has its personality types. In my experience the most difficult people to work with are cynics - no matter how talented they may be. Healthy skepticism is positive and curious. Cynicism is not - it's judgmental. The difference is under-appreciated. 1/2 1292
Peyman Milanfar @docmilanfar.bsky.social · 03/04/2025Autoregressive models have become more popular recently. Speaking to people, I get the sense most folks are unaware of the history of the topic in signal processing. In particular, AR across scale got a lot of attention in the 90s. There are a lot of great papers on the subject but one stand out….. 2485
Peyman Milanfar @docmilanfar.bsky.social · 31/03/2025A cipher (or cypher) is an algorithm for performing encryption or decryption - the foundation of all of cryptography research and practice. Not widely appreciated is that the word cipher has its direct origin in the arabic word صفر (sifr) meaning zero. Andصفر itself roots to sanskrit शून्य (śūnya) 3232
Peyman Milanfar @docmilanfar.bsky.social · 27/03/2025A man walks into a library and asks whether they have a book on Pavlov’s dog and Schrodinger’s cat. The librarian thinks for a moment and says “it rings a bell, but I’m not sure if it’s in or not” 0245
Peyman Milanfar @docmilanfar.bsky.social · 26/03/2025I posted this thread four months ago. To my knowledge not a single one of these 10 basic features has been implemented on this website. It can’t be that hard. 250
Peyman Milanfar @docmilanfar.bsky.social · 21/03/2025In some ways it's harder than ever to land a research job these days - both in academia and in industry. As you prepare for a job talk, consider giving it the following structure - it's hard to give a bad talk that's built like this.: 0/n 3303
Reposted by Peyman MilanfarDmytro Mishkin @ducha-aiki.bsky.social · 19/03/2025The Power of Context: How Multimodality Improves Image Super-Resolution Kangfu Mei, Hossein Talebi, Mojtaba Ardakani, Vishal M. Patel @docmilanfar.bsky.social Mauricio Delbracio tl;dr: condition SR model on RGB+depth+segmentation (which you can predict from RGB)-> PROFIT arxiv.org/abs/2503.14503 0153
Reposted by Peyman MilanfarPeyman Milanfar @docmilanfar.bsky.social · 18/03/2025Tweedie's formula is super important in diffusion models & is also one of the cornerstones of empirical Bayes methods. Given how easy it is to derive, it's surprising how recently it was discovered ('50s). It was published a while later when Tweedie wrote Stein about it 1/n 16414
Peyman Milanfar @docmilanfar.bsky.social · 18/03/2025Tweedie's formula is super important in diffusion models & is also one of the cornerstones of empirical Bayes methods. Given how easy it is to derive, it's surprising how recently it was discovered ('50s). It was published a while later when Tweedie wrote Stein about it 1/n 16414
Peyman Milanfar @docmilanfar.bsky.social · 16/03/2025Don’t be fooled - SakanaAILabs has very likely already submitted dozens of manuscripts to various conferences to test out its model before productionizing in this sham “experiment”. It’s not an experiment, it’s arbitrage - a core expertise of David Ha from his finance days 1/n 1160
Peyman Milanfar @docmilanfar.bsky.social · 12/03/2025The tech industry in Silicon Valley runs on the considerable talents and work ethic of folks who were not born here. Many of these folks were also trained in this country in our Universities. This is our strength. If we mess with this virtuous cycle, it is at our own peril. 0252
Peyman Milanfar @docmilanfar.bsky.social · 11/03/2025In the 50s a sophisticated theory of how to look for things was developed. Rooted in operations research, it was largely motivated by the loss of an H-bomb and a nuclear submarine in the middle of the ocean Closely related to concepts in reinforcement learning 1/2 1376
Peyman Milanfar @docmilanfar.bsky.social · 05/03/2025With today's Turing, it's worth highlighting Barto & Sutton's view of "related work": "In this book, we consider all of the work in optimal control also to be, in a sense, work in reinforcement learning" It's an example of reframing & renaming in CS that's somehow both myopic & maximalist. 1/2 1170
Peyman Milanfar @docmilanfar.bsky.social · 05/03/2025Breaking: Faced with a strong economy, peaceful neighbors, and loyal allies, the United States has tapped into its strategic wacky reserve to boost world mayhem. 0210
Peyman Milanfar @docmilanfar.bsky.social · 26/02/2025Einstein’s eulogy of the great Emmy Noether (1882-1935) “In the judgment of the most competent living mathematicians, Fraulein Noether was the most significant creative mathematical genius thus far produced since the higher education of women began” 0243
Peyman Milanfar @docmilanfar.bsky.social · 23/02/2025meet Chris J Li - this titan of thought has single-handedly conquered the fields of machine learning, optimization, statistics, reinforcement learning, and federated learning. he's not the visionary we want, but judging by the current state of affairs, he may be the one we deserve 2332
Peyman Milanfar @docmilanfar.bsky.social · 01/02/2025When x and y are independent random variables, their joint cumulative dist function (CDF) is the product of the individual CDFs: F(x, y) - F(x)*F(y) = 0 If x,y are only uncorrelated, then Cov(x,y) =0. Can we express uncorrelated-ness in terms of the CDFs as well? Yes. 1/2 1421
Peyman Milanfar @docmilanfar.bsky.social · 28/01/2025Not one VC would ever fund a startup to do the kind of hardcore optimization work that DeepSeek did. Every VC firm should be asking themselves why. 510312
Reposted by Peyman MilanfarMax Dubler 🏳️🌈 @maxdubler.com · 19/01/2025California housing is not expensive because we are running out of land. You can get a pretty cheap house in the Central Valley. California housing is expensive because we use zoning to cap the number of homes that can be built in the places with jobs and economic opportunity. 855859
Peyman Milanfar @docmilanfar.bsky.social · 13/01/2025Theorem: The more advanced the math, the thinner the books Corollary: In the limit there is no text for the most advanced topics 2312
Peyman Milanfar @docmilanfar.bsky.social · 12/01/2025The Laplacian operator can be expressed as the difference of a pair of smoothing operators. Here’s a canonical demonstration 1342
Peyman Milanfar @docmilanfar.bsky.social · 09/01/2025watching dudes pull all-nighters before a conference deadline 0200
Peyman Milanfar @docmilanfar.bsky.social · 09/01/2025Picasso's le taureau study is a masterful illustration of distilling an idea to its core essence. A deliberate and careful stripping away of details - especially when exposing an idea in a paper or lecture - can lead to clarity, a more powerful message, and impactful insights 1321
Peyman Milanfar @docmilanfar.bsky.social · 05/01/2025If you’re an AI startups, or interviewing w/ one ask: What are you the best in the world at? Do you offer a service, formula, or delivery method you invented? Is there something you do that’s patentable or a unique user experience? Have you identified and isolated a market segment? If not, walk 0223
Peyman Milanfar @docmilanfar.bsky.social · 03/01/2025the reviewer’s insightful suggestions have made our paper more accessible 0433
Peyman Milanfar @docmilanfar.bsky.social · 31/12/20242025 is … a perfect square 45 x 45 = 2025. a sum of cubes: 1³ + 2³ + 3³ + ... + 9³ = 2025 a perfect square when you add 1 to each digit: 3136 = 56² a perfect square when you increase the first digit by 1: 3025 = 55² Maybe the only number with all these properties 2828158
Peyman Milanfar @docmilanfar.bsky.social · 31/12/2024Hard to understand what to make of this. It shouldn’t be possible to co-author some 150 papers a year (in 2024 alone) and have any idea what’s in them. Past a certain point it seems meaningless to keep track, and downright bizarre to brag about. 1320